worldofcalcsGST Calculator
Updated for GST 2.0: since 22 September 2025, most goods and services are taxed at 5% or 18%, with 40% on luxury and sin goods.
GST Formula
The formula depends on whether you are adding or removing GST:
GST Amount = (Original Cost × GST%) / 100Net Price = Original Cost + GST AmountGST Amount = Original Cost - [Original Cost / (1 + GST%/100)]Net Price = Original Cost - GST AmountGST rates since 22 September 2025
| Rate | Goods & Services |
|---|---|
| 0% | Exempt: fresh fruit and vegetables, milk, and individual health and life insurance premiums. |
| 3% | Gold, silver and jewellery. |
| 5% | Most everyday goods: many packaged foods, butter and ghee, soap and shampoo, many medicines. Most items that used to be 12% moved here. |
| 18% | The standard rate for most services and manufactured goods, including TVs, air conditioners and small cars. Most items that used to be 28% moved here. |
| 40% | Luxury and sin goods, such as pan masala, sugary and aerated drinks, and large cars and motorcycles. |
The exact rate depends on the HSN or SAC code of each item; check the official rate schedule before invoicing.
About GST Calculator
Quickly add or remove GST from an amount using a chosen rate. Ideal for invoicing, pricing, and tax-inclusive/exclusive comparisons.
Features
- Two modes: Add GST or Remove GST.
- Shows tax and total/base amounts clearly.
- Instant calculations with simple inputs.
Common Uses
- Creating tax-inclusive or tax-exclusive price lists.
- Invoice reconciliation and verification.
- Retail and service pricing adjustments.
How to Use
- Enter the amount.
- Enter GST rate.
- Select Add or Remove mode.
- Review tax and totals instantly.
What is GST?
GST (Goods and Services Tax) is the indirect tax charged on almost everything sold in India. Since the GST 2.0 reform on 22 September 2025, most goods and services are taxed at either 5% or 18%, luxury and sin goods at 40%, and gold and silver at 3%; the old 12% and 28% slabs are gone. On a sale within a state the tax is split equally into CGST and SGST; on a sale to another state it is charged as IGST.
GST Formulas
To add GST: Total = Base price + GST. To take GST out of a GST-inclusive price: Base price = Total ÷ (1 + GST% ÷ 100). Within a state, CGST and SGST are each half of the GST; between states, IGST is the full amount.
What changed with GST 2.0
- The 12% and 28% slabs were removed on 22 September 2025. Most 12% items moved to 5%, and most 28% items moved to 18%.
- Luxury and sin goods, such as pan masala, sugary and aerated drinks, and large cars and motorcycles, are now taxed at 40%.
- Individual health and life insurance premiums became exempt from GST.
- Gold and silver keep their special 3% rate.
- Registered businesses can still claim input tax credit for the GST they pay on purchases, so they only pay tax on the value they add.
- Retail prices (MRP) already include GST. Use Remove GST to see how much of a price is tax.
Worked example: ₹1,000 at 18%
- Price before GST = ₹1,000, GST rate = 18%
- GST = ₹1,000 × 18% = ₹180
- Within the same state: CGST ₹90 + SGST ₹90
- To another state: IGST ₹180
- Total price = ₹1,000 + ₹180 = ₹1,180
- Reverse: ₹1,180 ÷ 1.18 = ₹1,000 before GST
GST on ₹1,000 at each rate
How much tax is added to a ₹1,000 price at each GST rate, and how it is split within a state.
| Rate | GST | CGST + SGST | Total |
|---|---|---|---|
| 3% | ₹30 | ₹15 + ₹15 | ₹1,030 |
| 5% | ₹50 | ₹25 + ₹25 | ₹1,050 |
| 18% | ₹180 | ₹90 + ₹90 | ₹1,180 |
| 40% | ₹400 | ₹200 + ₹200 | ₹1,400 |
For a sale to another state, the whole GST is charged as IGST instead of CGST + SGST.